Sloths appear to have life figured out, and once the details are revealed, being envious makes sense. These tree-dwelling mammals have survived for millions of years by doing things their own way, and ...

Three-toed sloths descend from the canopy about once a week to defecate, risking predation during one of the most dangerous moments of their lives. A single sloth bowel movement can account for up to ...

The charismatic and slow three-toed sloth is just one of many animals species that Smithsonian scientists study, from within our vast collections to live animals at our research centers and National ...

Sloths always seem to have a relaxed smile on their lips, making them appear friendly and cute. The natural habitat of these leisurely tree dwellers is the tropical rainforests of Central and South ...